Air-heating furnace with forced flow air circulating means



Feb. 26 1952 P. K. RUSSELL 2,587,228

AIR-HEATING FURNACE WITH FORCED FLOW AIR CIRCULATING MEANS Filed May 20, 1949 INVENTOR. Era? K. Passe Patented Feb. 26, 1952 AIR-HEATING FURNACE WITH FORCED 'FLOW AIR .CIRCULATI-NG MEANS Peter Kephart Russell, Shippensburg, Pa.

Application May 20, 1949,,Serial No. 94,440

3-Claims. 1 This invention relates to a heating device, and more particularly to a heating unit embodying an oil burner and an air-circulating fan.

It is an object of this invention to provide a heating and cooling air-circulating device of the kind to be more particularly described hereinafter, having an air-circulating fan mounted above the heater body and directed toward the upper end of the heater for moving the heated air, in the immediate vicinity of the heater top, in any selected or desired direction.

Another object of this invention is to provide a heater of this kind having a novel burner and burner arrangement in relation to the air draft entering the burner. The burner is connected to an upwardly-directed air inlet draft and below a bafile or damper the air-intake line for receiving air as it is moved from the cold air inlet end of the burner to the warm or heated nozzle end.

A further object of this invention is to provide a novel burner element for an oil burner of this kind formed for efficient and economical fuel consumption.

With the above and other objects in view, my invention consists in the arrangement, combination and details of construction disclosed in the drawings and specification, and then more particularly pointed out in the appended claims.

In the drawings:

Figure 1 is a front elevation, partly broken away and partly in section, of a hot and cold air-circulating device constructed according to an embodiment of my invention;

Figure 2 is a fragmentary side elevation of the upper end of the circulator;

Figure 3 is a transverse section taken on the line 33 of Figure 1;

Figure 4 is a fragmentary perspective view of the burner end of the fuel burner shown in Figures 1 and 2;

Figure 5 is a fragmentary detail section taken on the line 55 of Figure 1;

Figure 6 is a perspective view of the burner end of a modified form of burner;

Figure '7 is a side elevation, partly broken away and partly in section, of the modified burner shown in Figure 6.

Referring to the drawings, the numeral I 0 designates generally a hot and cold air-circulating device constructed according to an embodiment of this invention. The device I!) is formed with an upwardly-opening, hollow body II formed of metal or other suitable material. The bottom o en :end of the body I! is fixed to or otherwise 2 suitably secured on a base or bottom member I2 which is adapted to be suitably positioned and fastened to a fioor I4 or other suitable supporting device. The body II is open at the upper end and a cover or closure member I5 is adapted to be removably secured on the upper end of the body for closing the upper open end thereof. The cover I5 is formed with a convex top wall I6 having a marginal flange I! on the lower or bottom edge thereof. The marginal flange I1 is adapted to be frictionally engaged about the outer side of the upper end of the body II for frictionally securing the cover I5 thereto.

A fan or blower element I8 is adapted to be positioned below the heater body I I, as below the floor I4, as shown in Figure 1 of the drawings. An air duct I9 is connected to the blower or fan l8 and extends upwardly from the blower along the length of the body II adjacent thereto. The fan I8 is positioned at the lower end of the air duct I9 for blowing the air upwardly, thereby providing an up-draft for conducting or leading air to the burner element 20 within the body II.

A damper 2! is rockably supported within the air duct I9 and includes a flat disc 22 for disposition transversely'of the duct I9, the plate 22 being hingedly mounted on a transverse hinge bar 24 which is pivotally mounted in the side walls of the duct I9 transversely thereof. A crank or handle 25 is fixed on the other end of the hinge or bar 24 or selectively positioning the damper 2I in a selected angular position transversely of the tube I9 for directing a certain amount of air from the up-draft duct I9 to the burner 20. The damper 2| is positioned in the tube I9 above the lower end of the heater body II and afuel-conductin tube 26 is adapted to be connected into one side wall of the duct I9 below the damper -2I.

The elongated tube 26 is fixed at one end to the duct I9 on one side thereof and extends 'substantially horizontally into the heater II- at the lower end thereof. The extreme inner end of the tube 26 is formed with an elongated horizontally-extending slot 21 along the length thereof, the slot or opening 21 constituting the burner opening or point at which the fuel within the tube 26 may be ignited and burned. The extreme inner end 23 of the tube 26 closes the tube at the inner end thereof so that the fuel and air entering the tube 26 and being moved along the length thereof will pass outwardly through the slot 21 in a substantially horizontal direction transversely of the longitudinal axis or length of the tube 2-6. I

. ber. I5.

A fuel oil tank 29 is suitably positioned outside of the heater body II and may be aptly support ed thereon by a bracket 30. A fuel-conducting line 3| is connected atone end to the bottom of the fuel tank 29 and at the other end to a fuelcontrol valve 32. The fuel-control valve 32 is connected 'to the fuel inlet tube 26 between the heater body II and the air duct I9, as clearly shown in Figure 1 of the drawings. The control valve 32 will suitably control the amount of fluid passing from the tank 29 to the burner 20.

A suitable door or closure member 35 is swingably mounted in one wall of the heater housing II adjacent the lower end thereof to provide suitable access to the interior of the housing II and to the burner 20 enclosed thereon. Suitable air-inlet openings 36 are formed in the lower end of the wall of the body or housing I I opposite from the entrance of the tube 25 through the wall II, substantially in alignment with the axis of the tube 26, to provide for the proper combustion of the fuel at the nozzle opening 21.

In the use and operation of the heater decribed above, with the blower I8 in operation, the damper 25 is properly set at a desired angle relative to the axis of the duct I9 for forcing a desired amount of air into the heater body II through the tube 26. The valve 34 connected to the tube 26 between the duct I9 and body II will provide a suitable fine control for the admission of air to the burner 20 and the valve 32 will provide for the control of oil from the oil supply reservoir 29. As the tube 26 is inclined slightly downwardly and inwardly so that the fluid entering the tube 26 at the valve 32 will substantially fiow down along the lower side thereof into the heater I I, the oil at the burner opening 21 may be ignited, and the ignition of the oil at the burner 25 will provide for the suitable heating of the cover mem- A suitable exhaust tube 31 is connected to the body II intermediate the length thereof above the burner 20 to provide for the suitable discharge of the burned gases within the body I I.

As the top of the body II, the cover I5, is the focal point of the heated gases within the body II, there is provided a fan or blower 38 which is directed toward the convex cover I for blowing the heated air in a selected or desired direction.

A frame 39 is fixed to the upper end of the tank II for supporting the blower ormotor 35 thereon and may be suitably supported on the body I I in any selected relative position for blowing the air in the immediate vicinity of the cover I5 in any selected direction. A ring 45 is engaged about the body I I adjacent the upper end thereof and below the cover I5. The ring 45 is adapted to be slidably and rotatably secured on the body II to be fixed in any selected rotated position relative to the body by means of securing elements or bolts 49 rotatably supported in openings formed in the ring 4!! and engaging the shell II A pair of outwardly-directed arms 4I and 42- are fixed on the opposite sides of the ring 40 and the arms 44 and 45, formed integrally with the arms M and 42, respectively, extend upwardly substantially parallel to the axis of the cylindrical body II. A connecting bar 46 is secured to the extreme upper ends of the upwardly-extending bars 44 and 45 and is preferably disposed substantially across the diameter of the body I I. The arms M, 42, 44, 45 and 45 together constitute a loop 4'! engaging about the upper end of the tank I I and cover I5 in such a manner that each of the arms,

or the entire loop, is spaced away from. the coveramazes I5 and the blower 38 which is carried by the loop 4'! may be positioned at any selected angle directed at the cover I5. Suitable bolts 48 secure the loop 41 to the anchor ring 40 and other bolts 49 engage through the ring 40 and clampingly engage the outer surface of the body I I for fixedly securing the ring 40 and loop 41 in any selected angular position relative to the vertical axis of the body II.

The arms 44, 45 and 46 are formed with a plurality of longitudinally-spaced-apart apertures 50 along the length thereof, and a bracket 5I is adapted to be fixed in a selected pair of apertures 50. The blower or fan 38 is fixedly carried by the bracket 5I so that the selected positioning of the bracket 5I along the length of the loop 41 will position the blower 38 at a selected angular relation to the cover I5. Preferably, the blower 38 will be disposed in such a manner that the air blowing from the blower 38 toward the cover I5 will substantially engage the cover I5 tangent thereto for blowing the heated air transversely of the heater body II in any selected horizontal, or downwardly-directed, direction.

In Figures 6 and '7 of the drawings, there is shown a modified form of burner 52 for use in place of the burner 20 described above. ,The burner 52 is formed of an elongated tube 54 for connection to the air-draft duct I9 in the same manner as the connection of the tube 25. A transverse tube 55 is fixed to the front end of the tube 54 diametrically thereof, and extends outwardly beyond the side edges. The transverse head 55 is formed with an elongated, horizontal slot 58 opening at the forward end of the tube 54. The elongated slot 53 constitutes the burner opening through which the gases and oils being burned by the burner 52 will pass during the process of. combustion. The slot or opening 56 is disposed in a horizontal plane and opens for-. wardly at the forward inner end of the tube 54.

I do not mean to confine myself to the exact details of construction herein disclosed, but claim,

all variations falling within the purview of the appended claims.

I claim:

1. An air-heating and circulating device comprising a hollow metal open-ended shell havin one end adapted to be sealingly supported upon the floor of a room, a cover closing the other open intermediate the top and bottom for withdrawing the products of combustion from said shell,

an upstanding loop provided with separated ends positioned adjacent to and surrounding the top.

of said shell and having its separated ends secured to said shell, and a rotatable fan positioned within said loop above and spaced from the top of said shell with the-fan facing the top of said shell andsupported on said loop for causing circulation of the heated air in the region externally of and about the cover of said shell.

2. An air-heating and-circulating device comprising a hollow metal open-ended shell having one end adapted to be sealingly supported upon the floor of a room, a cover closing the other open end of said shell, a burner positioned within said shell adjacent said floor for converting: a combustible mixture into heated products of combustion, means exteriorly of said shell and operatively connected to said burner for introducing a combustible mixture to said burner, a

flue positioned exteriorly of said shell and connected to said shell intermediate the top andbottom for withdrawing the products of combustion from said shell, a ring positioned exteriorly of said shell adjacent to and spaced from said cover and supported on said shell for sliding longitudinal movement with respect to said shell, an upstanding loop provided with separated ends positioned adjacent to and surrounding the top of said shell and having its separated ends secured to said ring, and a rotatable fan positioned within said loop above and spaced from the top of said shell with the fan facing the top of said shell and supported on said loop for causing circulation of the heated air in the region externally of and about the cover of said shell.

3. An air-heating and circulating device comprisin aho-llow metal open-ended shell having one end adapted to be sealingly supported upon 0 Number of said shell adjacent to and spaced from said cover and supported on said shell for sliding longitudinal movement with respect to said shell, said ring being provided with a plurality of spaced openings therearound, securing elements rotatably supported in said openings and engaging said shell for securing said ring to said shell, an upstandin loop provided with separated ends positioned adjacent to and surrounding the top of said shell and having its separated ends secured to said ring, and a rotatable fan positioned within said loop above and spaced from the top of said shell with the fan facing the top of said shell and supported on said loop for causing circulation of the heated air in the region externally of and about the cover of said shell.

PETER KEPHART RUSSELL REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Name Date Doble Dec. 16, 1924 Sounitza Nov. 20, 1928 Martin Mar. 22, 1932 Macchi Nov. 26, 1935 Modine Dec. 27, 1938 Bandurski Dec. 12, 1944 Russell Dec. 2, 1947 Loveless July 15, 1890 

